Intermediate
Technical
In the Industry Vocabulary Test
hydrocephalus
Abnormal accumulation of cerebrospinal fluid within the brain's ventricular system causing increased intracranial pressure.
Full Definition
Hydrocephalus is a condition characterized by excessive accumulation of cerebrospinal fluid (CSF) in the brain's ventricular system, resulting in ventricular enlargement and increased intracranial pressure. It can be classified as communicating (normal CSF flow but impaired absorption) or non-communicating (obstructed CSF flow). Hydrocephalus may be congenital or acquired, and can present with symptoms including headache, gait disturbance, cognitive impairment, and in infants, macrocephaly.
Usage
Usage note: Distinguish between communicating and non-communicating types in documentation.
In Context
- "CT scan revealed obstructive hydrocephalus secondary to a posterior fossa tumor." — Emergency department note
- "The patient underwent ventriculoperitoneal shunt placement for hydrocephalus." — Surgical procedure note
Also known as
water on the brain
Don't confuse with
cerebral atrophy
normal pressure hydrocephalus